Fix issue with project_key being added to form.
Fix issue with project_key being added to form.

The code is tightly coupled to the form -> API calls.  The right way is to simply take the cleaned data
and write the correct API calls.  Currently the form tries to do fancy schema manipulation to translate
to JIRA API calls.

hearsaycorp/sentry-jira,thurloat/sentry-jira,beeftornado/sentry-jira,getsentry/sentry-jira,thurloat/sentry-jira,beeftornado/sentry-jira,amathewhearsay/sentry-jira,amathewhearsay/sentry-jira,getsentry/sentry-jira,hearsaycorp/sentry-jira